How to turn off geo-tagging for photos you take on your iPhone:
Settings – Privacy – Location Services
If you want to really go dark, turn Location Services to 'off.' No one can find you. This will turn off all of your app location services, but you will not be able to use GPS or apps like Waze.
If you use GPS, or Apps like Waze and Yelp to find things around you and/or you want people to track your approximate location in case of an emergency, leave Location Services on.
Scroll down to the apps.
Set Camera to 'Never.'
Set Messages to 'Never.'
Set Instagram, Facebook, Snapchat, etc. to 'Never.'
You can set some apps, such as Yelp and Waze to 'While Using the App,' but remember, if you take a photo using the app, it will have a geo-tag.
To remove geo-tags, or EXIF data, from photos you already took click here.